What has Thomas Edison invented?

Answer 1

Thomas Alva Edison invented or improved

• the telegraph
• the phonograph (for playing music recordings)
• the electric motor
• the light bulb
• the movie camera

Here is a list of the main ones with dates:

1868: An automatic vote recorder for legislatures.

1869: Several telegraph devices.

1871: Improvements in stock ticker technology.

1874: Quadruplex telegraph for Western Union company, which transmitted four messages at the same time

1875: The electric pen, an early copying device, and various telegraph inventions.

1877: The phonograph (early recorded music player) and the carbon transmitter (a great improvement in phone technology).

1879: A DC generator for electric lighting and the carbon filament lamp.

1882-1883:

• A three-wire central station for distributing electric light, power, and heat in Brockton, Massachusetts.
• He discovered the "Edison effect," first called "Etheric Force", which was a "damper" or valve to control the flow of current.
• The carbon button which led to the diode.
• Electric waves in free space.

1883: A three-wire central system for electric lighting in Sunbury, Pa.

1886: An improved wax-recording phonograph called the graphophone.

1881 - 1887:

• A system of wireless telegraphy to and from railway trains.
• A wireless system of communication between ships at sea and land.

1887-1890:

• Improved the wax cylinder phonograph.
• Obtained over eighty related patents.
• Set up a commercial business to make and sell phonographs and records, including the machines to record and produce the records.

1891:

• Several inventions to improve electric railways.
• The movie camera (Kinetoscope)

1891-1900:

• A giant roller machine for breaking and crushing rock.
• The Fluoroscope screen for X-rays
• Thousands of crystallizations of chemical salts.
• Discovered that crystals of Calcium Tungstate were highly fluorescent to the X-ray.
• Several improvements on the X-ray tube.

1905: A new type of dictating machine, which let the speaker hear and make corrections.

1907: The Universal Electric Motor to run dictating machines on all lighting circuits.

1900 -1909: Many inventions on the ways to make pre-cast buildings.

1900 - 1910: The steel alkaline storage battery.

1910-1914: The diamond point reproducer and the "unbreakable" record, great improvements in his record playing phonographs.

1912: The Kinetophone or talking movie picture.

1913: Automatic correction device for the dictating machine.

1914: The Telescribe, a phone with a built in recorder, that would record both sides of a phone conversation.

1915: The first synthetic form of carbolic acid (C6H6O).

Thomas Edison filed over a thousand patents for various inventions. Among them are the phonograph, electrical vote recorder, first electric generator, paraffin paper, electric pen, carbon rheostat, microtasimer and the electric chair.

electric light bulb

telephone

phonograph

motion picture camera

Thomas Edison filed over a thousand patents for various inventions. Among them are the phonograph, electrical vote recorder, first electric generator, paraffin paper, electric pen, carbon rheostat, microdensitometer, light-bulb and the electric chair.

Thomas Edison did not invent the light bulb, he only improved upon it.

Answer 2

thomas edison has invented the light bulb , the telegraph and many more ....

Answer 3

They both invented their own way of making the light bulb

Answer 4

moovie projector and the paper sack

Answer 5

telephone, DC power, light bulb

Answer 6

The phonograph-apex ❤️